The law firm of Dyer & Berens LLP (www.DyerBerens.com) announced today that it has initiated its own investigation concerning potential legal claims of Community Health Systems, Inc. (NYSE: CYH) investors who purchased common stock between December 9, 2010 and April 11, 2011.

On April 15, 2011, Community Health announced that it had received a subpoena from the U.S. Department of Health and Human Services (DHHS). The subpoena reportedly requests documents relating to emergency department procedures and is connected to an investigation into potential improper Medicare and Medicaid claims. This announcement came on the heels of a lawsuit filed by Tenet Healthcare alleging that Community Health committed securities fraud through medically unnecessary admissions at its hospitals in order to increase revenue from Medicare and Medicaid. On the news of this lawsuit, Community Health’s stock price lost more than 40% of its value.

If you purchased Community Health common stock between December 9, 2010 and April 11, 2011, or if you have information relevant to the investigation, you may contact Jeffrey A. Berens, Esq. at (888) 300-3362 x302 or via email at jeff@dyerberens.com.

The law firm of Dyer & Berens LLP focuses on complex class action litigation on behalf of injured investors throughout the nation. The firm’s extensive experience in securities litigation has contributed to the recovery of hundreds of millions of dollars for aggrieved investors. For more information about the firm, please go to www.DyerBerens.com.